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| Pre-Motorized Bicycle Information. Before you mount that engine to your bicycle frame, you'll want to know if the bike is ready for the engine! Ask our experts here for advice on what motorized bicycle engines perform well on what bicycles. |
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03-01-2009, 02:15 PM
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Motorized Bicycle Member
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Join Date: Sep 2008
Location: Wisconsin
Posts: 21
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Darn it!!!!! Please Help!!
Hi again,
I got the sprocket done and on the bike. I thought that I had gotten it aligned ok and tighten all of the bolts. Now I noticed I still have a bit of a wobble when I look down at the sprocket when I spin the tire. Any suggestions as to getting this thing to align without losing the bolts? I tried to loosen the bolts and start over again but they are very tight. Thanks in advance.
Ty
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03-01-2009, 02:34 PM
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Custom Builder / Dealer
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Join Date: Mar 2008
Location: Los Angeles, CA.
Posts: 4,418
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Re: Darn it!!!!! Please Help!!
DON'T TIGHTEN THE BOLTS TOO TIGHT!!!! Loosen them a little and spin the wheel; tap the sprocket with a plastic head hammer until it is straight then snug the bolts in a 'star' pattern!
You can hit it in any direction to make it straight...
Last edited by Venice Motor Bikes; 03-01-2009 at 02:39 PM.
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03-01-2009, 02:42 PM
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Custom MB Buiilder
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Join Date: May 2008
Location: Houston, Texas
Posts: 1,237
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Re: Darn it!!!!! Please Help!!
Yep, and you can bend your spokes.
__________________
Only Bikers know why dogs love to stick their heads out of car windows,
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03-01-2009, 02:56 PM
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Godfather of Motorized Bicycles
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Join Date: Jan 2008
Location: Ashtabula county, Ohio
Posts: 10,003
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Re: Darn it!!!!! Please Help!!
He said tap it, not hit it with a five pound sledge...
I use a plastic hammer too. Never bent a thing.
__________________
If it ain't broke, and you mess with it long enough, it will be.
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03-09-2009, 06:47 PM
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Super Moderator
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Join Date: Sep 2008
Location: Littleton, Colorado
Posts: 6,747
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Re: Darn it!!!!! Please Help!!
Just a thought here but is your wobble viewed from the side or above the sprocket? If what you're describing as a wobble is actually an out-of-round condition (sprocket not centered on the hub) then follow the advice offered by the guys above but if the sprocket wobbles side to side a hammer won't help. You need to keep the torque (amount you tighten the nuts) consistant or one side of the sprocket will be pulled in more than the other which will give you a side to side wobble as viewed from above the wheel looking down. Hope this helps but if not let us know. We're here to help.
Tom
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Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"
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03-09-2009, 07:41 PM
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Motorized Bicycle Senior Member
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Join Date: Oct 2008
Location: Grunthal, Manitoba, Canada
Posts: 72
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Re: Darn it!!!!! Please Help!!
For the up and down wobble, I always put tape around the rim until the sprockets hole is snug.
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03-09-2009, 10:21 PM
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Custom Builder / Dealer
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Join Date: Mar 2008
Location: Los Angeles, CA.
Posts: 4,418
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Re: Darn it!!!!! Please Help!!
The plastic hammer trick works VERY WELL to fix a slight side to side wobble too! (that's AFTER torquing the bolts properly of course!)
wish we lived closer we could have fun!
Norman
Last edited by Norman; 03-11-2009 at 01:27 PM.
Reason: like your site venice boy I'll check it out more as I have time on my hands
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03-12-2009, 10:20 PM
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Custom Builder / Dealer
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Join Date: Mar 2008
Location: Los Angeles, CA.
Posts: 4,418
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Re: Darn it!!!!! Please Help!!
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03-26-2009, 02:46 PM
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Motorized Bicycle Senior Member
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Join Date: Feb 2009
Location: Charlotte, NC
Posts: 50
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Re: Darn it!!!!! Please Help!!
More sprocket stuff.. I have mounted and removed the sprocket on my (first attempt) Huffy until I lost count. I have worn out the inserts on the Essna type locknuts and had to get new ones. After having the sprocket bored it will go on the dust cover but there is no way the sprocket will line up with the drive gear sprocket. My machinist friend came over and the eyeball could tell without even pulling a string in a straight line that this ain't going to work. He said in spite of all the pictures and instructions to turn the sprocket around with the dish outside and the shinny side outside which will give needed width. I did and can tell that with a string it lines up straighter, but can tell that the fender will have to be cut or removed to clear the chain. I believe the chain will clear the frame but may rub the tire. My question is: Should I continue, or is this the wrong thing to do?
Progress has been very slow and challenging so all advice and information is appreciated.
Thanks,
Pedal Pusher
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03-26-2009, 03:13 PM
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Motorized Bicycle Elite Member
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Join Date: Mar 2008
Location: Ontario
Posts: 550
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Re: Darn it!!!!! Please Help!!
Turning the sprocket around is fine and I'd guess that they were built like that for that reason. The fenders always seem to get trimmed for the chain and is no big deal.
Washers or spacers can also be used to spread the chain stays out by putting them on the rear wheels axle and if you feel it's needed you could also use spacers on the sprocket to bring it out more.
For me installing that stupid thing is the worst part of these kits but you will get it.
I guess you don't have a camera?
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